From e486d7f8ea1b2e607732ee38df62f4b5bfcbcbee Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@users.noreply.github.com>
Date: Sat, 2 Mar 2019 16:34:50 +0100
Subject: [PATCH] Allow `{Binding .}` syntax.

Fixes #1898.
---
 .../Avalonia.Markup/Markup/Parsers/ExpressionParser.cs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/Markup/Avalonia.Markup/Markup/Parsers/ExpressionParser.cs b/src/Markup/Avalonia.Markup/Markup/Parsers/ExpressionParser.cs
index bf6ebe837b..a1350a8393 100644
--- a/src/Markup/Avalonia.Markup/Markup/Parsers/ExpressionParser.cs
+++ b/src/Markup/Avalonia.Markup/Markup/Parsers/ExpressionParser.cs
@@ -106,6 +106,11 @@ namespace Avalonia.Markup.Parsers
             {
                 return State.Indexer;
             }
+            else if (ParseDot(ref r))
+            {
+                nodes.Add(new EmptyExpressionNode());
+                return State.End;
+            }
             else
             {
                 var identifier = r.ParseIdentifier();
@@ -317,6 +322,11 @@ namespace Avalonia.Markup.Parsers
             return !r.End && r.TakeIf('#');
         }
 
+        private static bool ParseDot(ref CharacterReader r)
+        {
+            return !r.End && r.TakeIf('.');
+        }
+
         private enum State
         {
             Start,